Electrical Panel Upgrade · San Antonio, TX

Electrical Panel Upgrade in San Antonio, TX: 2026 Costs & Local FAQs

Updated 2026-10-18 · Reviewed by the HomeServiceBud Editorial Team

Quick answer

An electrical panel upgrade in San Antonio typically costs about $1,300–$3,000 nationally, with 100-to-200-amp upgrades in the same range. Adjusted for Texas prices, plan on roughly $1,200–$2,700. In San Antonio, the biggest local factors are long, hot cooling season, flooding and high humidity.

Key takeaways

  • Typical cost in San Antonio: $1,200–$2,700 (per installed panel); national range $1,300–$3,000.
  • Biggest local factors: long, hot cooling season, flooding and high humidity.
  • How long it takes: Most panel upgrades take about 4–8 hours of labor, plus utility scheduling.
  • Permits: A permit is required, typically $50–$300; the electrician usually pulls it.
  • Best timing: Upgrade before summer, when AC loads are highest.
  • Before you hire: get at least three written, itemized quotes from licensed, insured Texas contractors.

What San Antonio homeowners should know

San Antonio has long, hot summers, periodic drought and fast-rising creeks during heavy rain, part of the stretch of Central Texas known as Flash Flood Alley. Much of the city sits on expansive clay that moves slab foundations, while the northern Hill Country edges have shallow soil over limestone.

Hail is a frequent hazard; the April 2016 hailstorms were among the costliest in Texas history. Hard water is also common across the area.

How much does electrical panel upgrade cost in San Antonio, TX?

An electrical panel upgrade typically costs $1,300–$3,000, with an average around $2,150. Amperage, meter and service changes, and subpanels drive the price. Texas prices run 11% below the U.S. average, so a typical San Antonio job lands around $1,200–$2,700. Local labor rates, permit fees and your home's specifics move the final number.

ItemTypical costNotes
100-amp panel installed$800–$1,500
150-amp panel installed$1,300–$1,600
200-amp panel / 100→200 amp upgrade$1,300–$3,000
400-amp service$2,000–$4,000
Meter box$200–$800Must match the new service
Subpanel$400–$1,750
Permit$50–$300Electrician usually pulls it

As a large city, San Antonio has plenty of contractors competing for work, which helps on price, but busy seasons can mean longer waits. Book early after major storms.

How we calculate costs

National ranges come from published cost surveys (cited below). Local estimates apply an approximate state cost index. Read our methodology.

Electrical Panel Upgrade cost questions for San Antonio, TX

  • What is the cost of 100-amp panel installed in San Antonio, TX? The typical cost of 100-amp panel installed in San Antonio, TX is $710–$1,300, adjusted for Texas prices (national $800–$1,500).
  • What is the cost of 150-amp panel installed in San Antonio, TX? The typical cost of 150-amp panel installed in San Antonio, TX is $1,200–$1,400, adjusted for Texas prices (national $1,300–$1,600).
  • What is the cost of 200-amp panel / 100→200 amp upgrade in San Antonio, TX? The typical cost of 200-amp panel / 100→200 amp upgrade in San Antonio, TX is $1,200–$2,700, adjusted for Texas prices (national $1,300–$3,000).
  • What is the cost of 400-amp service in San Antonio, TX? The typical cost of 400-amp service in San Antonio, TX is $1,800–$3,600, adjusted for Texas prices (national $2,000–$4,000).
  • What is the cost of meter box in San Antonio, TX? The typical cost of meter box in San Antonio, TX is $180–$710, adjusted for Texas prices (national $200–$800). Must match the new service.
  • What is the cost of subpanel in San Antonio, TX? The typical cost of subpanel in San Antonio, TX is $360–$1,600, adjusted for Texas prices (national $400–$1,750).
  • What is the cost of permit in San Antonio, TX? The typical cost of permit in San Antonio, TX is $40–$270, adjusted for Texas prices (national $50–$300). Electrician usually pulls it.
  • What is the cost of move the panel in San Antonio, TX? The typical cost of move the panel in San Antonio, TX is $710–$2,700, adjusted for Texas prices (national $800–$3,000).
  • What is the cost of main breaker replacement in San Antonio, TX? The typical cost of main breaker replacement in San Antonio, TX is $180–$270, adjusted for Texas prices (national $200–$300). $500–$2,000 if the bus bar is damaged.
  • What is the cost of AFCI/GFCI breakers in San Antonio, TX? The typical cost of AFCI/GFCI breakers in San Antonio, TX is $30–$50 each, adjusted for Texas prices (national $35–$60 each). Often required by code.

What affects electrical panel upgrade in San Antonio

Long, hot cooling seasonLong cooling seasons around San Antonio push AC and heat pump loads, a common reason older homes move to 200-amp service.
FloodingPanels that have been underwater in San Antonio floods must be replaced, not dried out.
High humidityHumid air around San Antonio can corrode panels; rust is a common upgrade sign.

San Antonio has hot, humid summers and mild winters. Upgrade before summer, when AC loads are highest.

Signs you need a panel upgrade

  • Breakers trip often
  • Lights flicker or dim when appliances run
  • You rely on power strips or can't run appliances together
  • The panel buzzes, feels hot or smells burnt
  • Rust or visible damage
  • A Federal Pacific or Zinsco panel, or plans for an EV charger or heat pump

Common questions about electrical panel upgrade in San Antonio

How much does an electrical panel upgrade cost in San Antonio, TX?

Most panel upgrades cost about $1,200–$2,700 in San Antonio, TX. A 100-to-200-amp upgrade typically runs $1,300–$3,000 nationally.

Do I need a 200 amp panel?

Most modern homes with central air, electric appliances or an EV charger are planned around 200 amps. A load calculation tells you for sure.

Is a Federal Pacific or Zinsco panel dangerous?

Both are widely flagged as outdated, and many electricians recommend replacing them.

How much does a subpanel cost?

A subpanel typically costs $400–$1,750 installed and can add circuits for a garage, addition or EV charger.

Timeline, permits and DIY in San Antonio

How long it takes

Most panel upgrades take about 4–8 hours of labor, plus utility scheduling.

Permits

A permit is required, typically $50–$300; the electrician usually pulls it. Check with the San Antonio building department for local rules.

DIY or hire a pro?

Not a DIY job: a licensed electrician must do the work and coordinate with the utility.

Questions to ask San Antonio contractors

Ask every bidder the same questions so you can compare quotes apples to apples.

  • Did you do a load calculation for my home?
  • Does the quote include the meter, permit and utility coordination?
  • Which breakers will be AFCI or GFCI to meet code?
  • Will the power be off, and for how long?

Maintenance that prevents costly repairs

  • Have the panel inspected if breakers trip often
  • Never ignore buzzing or burning smells
  • Label circuits clearly

How to hire for electrical panel upgrade in San Antonio

  1. Use a licensed, insured electrician.
  2. Ask for a load calculation to size the new service.
  3. Confirm the permit, inspection and utility coordination are included.
  4. Get the warranty for parts and labor in writing.

Electrical Panel Upgrade in San Antonio: FAQs

How much does an electrical panel upgrade cost in San Antonio, TX?

Nationally, most upgrades cost $1,300–$3,000. Local permit fees and utility requirements change the final price.

Do I need a permit for a panel upgrade in San Antonio?

Yes. A licensed electrician typically pulls the permit and coordinates with the utility.

Will I need a panel upgrade to add a heat pump in San Antonio?

Possibly. Ask for a load calculation; many older homes need 200-amp service for heat pumps and EV chargers.

How much does electrical panel upgrade cost in San Antonio compared to the national average?

With Texas's regional cost index of 0.89, expect roughly $1,200–$2,700 in San Antonio, versus $1,300–$3,000 nationally.

How long does electrical panel upgrade take in San Antonio?

Most panel upgrades take about 4–8 hours of labor, plus utility scheduling. Permit and inspection scheduling in San Antonio can add a few days.

Do I need a permit for electrical panel upgrade in San Antonio?

A permit is required, typically $50–$300; the electrician usually pulls it. Confirm with the San Antonio or county building department.

Which San Antonio ZIP codes does this guide cover?

This guide applies to San Antonio ZIP codes 78201, 78202, 78203, 78204, 78205, 78206, 78207, 78208, 78209, 78210, 78211, 78212, 78213, 78214, 78215, 78216, 78217, 78218, 78219, 78220, 78221, 78222, 78223, 78224, 78225 and more, plus the surrounding area.

Electrical Panel Upgrade near San Antonio

Olmos Park, TX
4 mi away · pop. 2,390Terrell Hills, TX
4 mi away · pop. 5,287Alamo Heights, TX
5 mi away · pop. 8,038Balcones Heights, TX
6 mi away · pop. 3,254Castle Hills, TX
7 mi away · pop. 4,424Kirby, TX
7 mi away · pop. 8,550Lackland Air Force Base, TX
8 mi away · pop. 9,918Leon Valley, TX
9 mi away · pop. 11,174China Grove, TX
9 mi away · pop. 1,291

Other home services in San Antonio

HVACAC, furnace and heat pump repair, replacement and costs$6,200–$10,700RoofingRoof replacement, leak repair, hail damage and insurance$6,000–$22,300Kitchen RemodelingKitchen remodel costs, timelines, permits and ROI$8,900–$62,300Bathroom RemodelingBathroom remodel costs, timelines, showers and ROI$5,900–$16,000Water Damage RestorationLeaks, floods, burst pipes, drying and insurance$1,100–$4,800Fire Damage RestorationFire, smoke and soot cleanup, odor removal and insurance$2,600–$34,100Mold RemediationMold removal, testing, costs and insurance$1,300–$4,500Garage Door RepairSprings, cables, openers, off-track doors and costs$70–$600Foundation RepairCracks, settling, piers, slab repair and costs$1,900–$7,000Water Heater ReplacementTank, tankless and heat pump water heater costs, permits and haul-away$780–$1,600Sewer Line Repair & ReplacementSewer line repair, dig replacement and trenchless pipe bursting or lining costs$1,200–$4,700Slab Leak RepairFinding and fixing leaks under a concrete slab: detection, reroute and lining$560–$3,900Window ReplacementNew window costs by type, frame material and installation method$270–$1,900Siding ReplacementSiding costs per square foot by material, plus removal, labor and permits$7,600–$17,800Gutter InstallationGutter costs per linear foot by material, plus downspouts, guards and removal$550–$1,500Attic InsulationAttic insulation costs by type, recommended R-values and when to add more$1,500–$2,200

Sources: This Old House — Cost to upgrade an electrical panel · Angi — Cost to upgrade an electrical panel. Ranges are rounded estimates; see our editorial policy.

Local risk factors reflect general Texas climate patterns; check FEMA's National Risk Index for county-level ratings. Local estimates apply an approximate regional cost index to national ranges.